Yingluck has faced six months of sometimes deadly protests in the capital, Bangkok, aimed at toppling her government. The anti-government protesters failed to achieve their aim in the street but turned to legal challenges to remove her.

Protest leader Suthep Thaugsuban, head of the People's Democratic Reform Committee (PDRC), an umbrella political pressure group in Thailand that has been organising large-scale protests in Bangkok to topple Yingluck, was also among the marchers.

"She has never shown any responsibility as a prime minister. Actually, she should have left long time ago. I'm so happy that the court ruled for justice," said 45-year-old protester Thanida Yuthanet.